"The greens were a little bit faster on Sunday," Johnson said. "Just the fact that it was the final round raises the difficulty level just because each shot feels a little bit more important. That played a factor in the scoring. The conditions of the golf course could not have been better."

Final round

Waxler couldn't make any birdies in the final round to protect his lead, but Stewart came to life Sunday with an eagle on the the par-5 third hole, which measures 516 yards. Stewart had a bogey on No. 9, but came up with birdies on No. 11, No. 12 and No. 15 to secure the championship. Murdock had birdies on the final nine holes on No. 12, No. 13 and No. 17 for his runner-up position.